GOODWILL AND INTANGIBLE ASSETS (Details) $ in Millions	3 Months Ended
	Mar. 31, 2020 USD ($)
Goodwill
Balance at the beginning of the period	$ 139.9
Foreign currency translation adjustment	(0.8)
Balance at the end of the period	139.1
Flatbed
Goodwill
Balance at the beginning of the period	59.3
Balance at the end of the period	59.3
Specialized
Goodwill
Balance at the beginning of the period	80.6
Foreign currency translation adjustment	(0.8)
Balance at the end of the period	$ 79.8